Finding the Fourth Proportional to 498,203.10, 747,429.81 and 143,217.75
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Solution
The fourth proportional to 498,203.10, 747,429.81 and 143,217.75 is: 214,862.60
Step by Step Solution
- Step 1: Write the proportion equation
498,203.10 : 747,429.81 = 143,217.75 : x - Step 2: Convert to fraction form
498,203.10/747,429.81 = 143,217.75/x - Step 3: Cross multiply
498,203.10x = 747,429.81 × 143,217.75 - Step 4: Simplify right side
498,203.10x = 107,045,215,671.13 - Step 5: Solve for x
x = 107,045,215,671.13/498,203.10 - Step 6: Final answer
x = 214,862.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.